HTML5 Newgrounds/Kongregate API

I've used the Newgrounds API on flash projects to add medals and leaderboards.... but now flash is dead, slow, and I want to make an HTML5 game that has these features. But they are exclusively on flash, even though Newgrounds has developed the API for HTML5.
So... how do I implement the features? I tried delving into the .js file generated by Stencyl… but it didn´t work

I have extensions for both of those sites, but I haven't implemented leaderboards for Newgrounds yet.
Kongregate: http://community.stencyl.com/index.php/topic,59316.0.html
Newgrounds: http://community.stencyl.com/index.php/topic,59319.0.html

ok sweet, thanks a ton rob!